Processing Machinery
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PA66 barrier film
Fenómeno do problema
PA66 packaging film oxygen barrier decreases in rainy season
Análise das causas
PA66 oxygen barrier decreases with rising humidity, and barrier performance deteriorates in high-humidity environments; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience
Solução
Use PA66 and polyolefin multilayer composite structures for high-humidity applications; test oxygen transmission rate according to actual humidity conditions; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
Conclusão principal
PA66 oxygen barrier is affected by humidity, high-humidity scenarios require composite structures; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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